Blue whales are the largest animals ever to live on our planet. They feed almost exclusively on krill, straining huge volumes of ocean water through their baleen plates (which hang from the roof of the mouth and work like a sieve). Some of the biggest individuals may eat up to 6 tons of krill a day. Blue whales are found in all oceans except the Arctic Ocean. There are five currently recognized subspecies of blue whales.
Blue Whale NOAA Fisheries
U.S. Coast Guard Will Help Researchers Track Whales Along The West Coast - Northwest Public Broadcasting
Whale entangled in fishing gear is fighting for its life off Outer Banks, NOAA says
North Atlantic Right Whale Consortium Archives - Conservation Law Foundation
Blue whale - NAMMCO
Orca inbreeding a concern for southern resident killer whales
NOAAWhaleWeek is almost here. - NOAA Fisheries West Coast
In celebration of the Endangered Species Act's 50th Anniversary
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Third dead whale in a week washes up on Oregon coast
Blue Whale NOAA Fisheries
Blue Whale NOAA Fisheries
NOAA denies activists' call for Rice's whale speed limits
Jess Morten, Protecting Blue Whales and Blue Skies in California's National Marine Sanctuaries
Whales NOAA Fisheries